CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents	$ 669,869	$ 632,234
Cash and cash equivalents segregated under federal and other regulations	3,600	3,000
Financial instruments owned, at fair value, including securities pledged to counterparties that had the right to deliver or repledge of $368,736 at March 31, 2017 and $314,720 at December 31, 2016:
Equities	2,179,211	2,343,033
Debt securities	128,932	177,698
Listed options	12,299	19,100
Other financial instruments	0	30
Total financial instruments owned, at fair value	2,320,442	2,539,861
Collateralized agreements:
Securities borrowed	1,594,442	1,688,222
Receivable from brokers, dealers and clearing organizations	801,678	832,785
Fixed assets and leasehold improvements, less accumulated depreciation and amortization	159,595	151,645
Investments	24,716	30,979
Goodwill and Intangible assets, less accumulated amortization	106,851	100,338
Deferred tax asset, net	109,877	109,861
Assets of business held for sale	0	8,194
Other assets	192,359	164,168
Total assets	5,983,429	6,261,287
Financial instruments sold, not yet purchased, at fair value:
Equities	1,694,374	1,821,957
Debt securities	177,168	211,222
Listed options	35,835	12,961
Other financial instruments	598	0
Total financial instruments sold, not yet purchased, at fair value	1,907,975	2,046,140
Collateralized financings:
Securities loaned	459,533	372,631
Financial instruments sold under agreements to repurchase	952,584	1,027,775
Other collateralized financings	50,000	100,000
Total collateralized financings	1,462,117	1,500,406
Payable to brokers, dealers and clearing organizations	495,253	518,900
Payable to customers	52,315	23,580
Accrued compensation expense	36,695	132,406
Accrued expenses and other liabilities	163,343	156,828
Income taxes payable	63,236	71,391
Debt	455,183	454,353
Total liabilities	4,636,117	4,904,004
Class A Common Stock
Shares authorized: 1,000,000 at March 31, 2017 and December 31, 2016; Shares issued: 91,810 at March 31, 2017 and 90,309 at December 31, 2016; Shares outstanding: 66,665 at March 31, 2017 and 67,192 at December 31, 2016	918	903
Additional paid-in capital	1,457,412	1,439,412
Retained earnings	195,276	192,064
Treasury stock, at cost; 25,145 shares at March 31, 2017 and 23,116 shares at December 31, 2016	(306,192)	(277,343)
Accumulated other comprehensive (loss) income	(102)	2,247
Total equity	1,347,312	1,357,283
Total liabilities and equity	$ 5,983,429	$ 6,261,287